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2015 3500 duramax
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DRR Trophy
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Just had to replace both batteries due to cold weather and age. Now the problem, the DEF fluid tank warning has now come on and I took back to dealer and they said @#500 to repair. Something about the plastic junction box over the firewall battery has caused problems with system. Oddly enough they replaced the def heater this time last year, I just don't see how replacing the batteries caused this problem, any ideas or problems others have had? Let me know!!
 
Posts: 74 | Location: oklahoma | Registered: November 26, 2009Reply With QuoteReport This Post
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